一种大振幅超声变幅杆设计  

Design of an ultrasonic horn with high amplitude of longitudinal vibration

作　　者：潘巧生[1] 刘永斌[1,2] 贺良国[1] 潘成亮[1,3] 邓知森 

机构地区：[1]中国科学技术大学精密机械与精密仪器系,合肥230027 [2]安徽大学机械工程系,合肥230039 [3]香港中文大学深圳研究院,广东深圳518057

出　　处：《振动与冲击》2014年第9期1-5,20,共6页Journal of Vibration and Shock

基　　金：国家自然科学基金青年基金资助项目(51205338);安徽省教育厅自然科学重点科研项目(KJ2013A010)支持

摘　　要：设计了一种等应力大振幅变幅杆。基于变截面杆的波动方程,ANSYS分析变幅杆振动模态和谐响应,设计了所需频率的等应力变幅杆。在此基础上仿真分析和比较了四种不同形状变幅杆的动态特性,验证了设计的准确性。实验测试所设计的变幅杆,结果显示,在198Vp-p的电压激励下,振幅峰峰值可达148μm。A design of an equal stress ultrasonic horn with high amplitude was presented.Based on the longitudinal vibration theory,ANSYS modal analysis and harmonic response analysis,an equal stress horn with required frequency was designed.The dynamic characteristics of four kinds of typical horns were simulated and compared to verify the correctness of the design.The designed horn was then manufactured and tested,the results showed that its peak-to-peak vibration amplitude reaches 148 μm at a driving voltage of 198Vp-p.

关 键 词：变幅杆 等应力 形状因数 超声 

分 类 号：TH122[机械工程—机械设计及理论] TH113.1